Celebrating 20 years of selling the highest quality parts at the lowest prices. Guaranteed.

"They had the exact part that I needed and I requested that it had to arrive at the location at a specific time and they performed with excellence! These guys rock "

"you have an excellent website.Yoy have really expanded since I first ordered. I have told several of my friends at dealerships about you. Say they have passed this on to friends who were impressed."

"WONDERFUL! Shipping is blinding fast! The site is great because there is an automatic inventory counter to tell you what is in or out of stock. Great site! Ordered from them several times without a hitch at all. And not to mention that their prices are CHEAP! "

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"Thanks for the response. We have an inside joke that you guys only hire ninjas with how fast your service is. SIS is definitely the first place I check for parts. You guys have a great thing going on there. Thanks!"

"I ordered a 45 degree angle 2.5 inch diameter coupler and I want to say I am very satisfied with the quality. Fast shipping as well. Thank you."